/*
 * Copyright 2024 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */

package org.cangnova.cangjie.ide.project.structure

import com.intellij.openapi.extensions.ExtensionPointName
import com.intellij.openapi.module.Module
import com.intellij.psi.PsiFile
import com.intellij.psi.ResolveScopeEnlarger
import com.intellij.psi.search.GlobalSearchScope
import com.intellij.psi.search.SearchScope


interface CangJieResolveScopeEnlarger {
    companion object {
        val EP_NAME: ExtensionPointName<CangJieResolveScopeEnlarger> =
            ExtensionPointName.create("org.cangnova.cangjie.resolveScopeEnlarger")

        fun enlargeScope(scope: GlobalSearchScope, file: PsiFile): GlobalSearchScope {
            val virtualFile = file.originalFile.virtualFile ?: return scope

            var result = scope
            for (extension in ResolveScopeEnlarger.EP_NAME.extensions) {
                val project = scope.project ?: continue
                val additionalScope = extension.getAdditionalResolveScope(virtualFile, project) ?: continue
                result = result.union(additionalScope)
            }
            return result
        }

        fun enlargeScope(scope: GlobalSearchScope, module: Module, isTestScope: Boolean): GlobalSearchScope {
            var result = scope
            for (extension in EP_NAME.extensions) {
                val additionalScope = extension.getAdditionalResolveScope(module, isTestScope) ?: continue
                result = result.union(additionalScope)
            }
            return result
        }
    }

    fun getAdditionalResolveScope(module: Module, isTestScope: Boolean): SearchScope?
}
